＝＝＝＝如何使dialog的高度随item的变化而变化

Window window = getWindow();window.setGravity(Gravity.BOTTOM);unitHeight = Controller.dip2px(aty, unitHeight);int dialogH = 0;int displayH = Controller.getDisplayHeight(aty) - Controller.dip2px(aty, 150);int unitHei = (mainList.size() + 1) * unitHeight;if (unitHei > displayH) {    dialogH = displayH;} else {    dialogH = unitHei;}unitHeight=55;getWindow().setLayout(Controller.getDisplayWidth(aty), dialogH);

aty为activity